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A072195 as a simple table

na(n)
11
21
31
44
51
66
71
864
99
1010
111
12144
131
1414
1515
164096
171
18324
191
20400
2121
2222
231
2413824
2525
2626
27729
28784
291
30900
311
321048576
3333
3434
3535
3646656
371
3838
3939
4064000
411
421764
431
441936
452025
4646
471
485308416
4949
502500
5151
522704
531
54157464
5555
56175616
5757
5858
591
60216000
611

[1,1,1,4,1,6,1,64,9,10,1,144,1,14,15,4096,1,324,1,
 400,21,22,1,13824,25,26,729,784,1,900,1,1048576,
 33,34,35,46656,1,38,39,64000,1,1764,1,1936,2025,
 46,1,5308416,49,2500,51,2704,1,157464,55,175616,
 57,58,1,216000,1]